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[6] Voltage too High or Low
Improve power supply circuit
Check if voltage of power
supply is normal
Check if wiring of
electric box is correct
In operation, check power
module voltage between
terminal P&N more than
390V or less than 160V
Correct the wiring due to diagram
Replace power module
Y
Y
N
N
Check rectifier, rector,
electrolytic capacitor in
inverter main circuit
N
Y
